A teenage girl usually (14-18) who continually does things that are bad for her in order to find love and affection from a man. However, this young woman rarely finds what shes looking for. -Comes from the way the main character pronounces name of the promiscuous-hippie character "Jenny" in Forrest Gump.

Dude, that Alex girl is such a Jenn-ay. I swear she never finds what shes looking for.

When a young man procures free or discounted items from a female food service worker by letting his fingers do the walking.
-This act can be performed under a table, in a kitchen, or in a bathroom. Just remember to always wash your hands before handling the food.

Dude I was eating at GW last week and the server totally gave me the four finger discount.